... surface and the M Lu et al / Chemical Physics Letters 374 (2003) 542–547 change in diameter along its length is seldom observed The SiNWs are virtually defect-free and show no kink, dislocation and ... with the pore surface and the atomic Si has absorbed and exchange energy and momentum with the atom, causing overcooling at the surface Because the precipitation, nucleation and growth of SiNWs ... tip of the SiNWs is sharp and has a perfect lattice structure This is in contrast with the previous SiNWs that are round and contain a high density of stacking faults and micro-twins Obviously,...
Ngày tải lên: 16/03/2014, 15:08
Ngày tải lên: 13/11/2014, 16:04
09 Physical and Chemical Characteristics of DDGS revisions.
... Physical & Chemical Characteristics of U.S DDGS Physical and chemical characteristics of distiller’s dried grains with solubles (DDGS) vary among sources and can influence its feeding value and handling ... during transport and handling – particle and ingredient segregation (separation) occurs when particles of different sizes and bulk densities are blended together and transported or handled Pellet ... Physical & Chemical Characteristics of DDGS Particle Size, Bulk Density and pH Particle size and particle size uniformity of feed ingredients are important considerations of livestock and poultry...
Ngày tải lên: 08/08/2012, 10:03
Different physical and chemical pretreatments of wheat straw for enhanced biobutanol production in simultaneous saccharification and fermentation
... Chemist Soceity and Institute of Food Technology She is a current Ph.D candidate Yaser Dahman holds a Ph.D in Chemical and Biochemical Engineering from the University of Western Ontario and an MBA ... chemical pretreatment: (beside glucose and xylose) represented 5.00% biomass concentration and (beside glucose and xylose) represented 2.50% biomass concentration Figure illustrated glucose and ... the presence and absence of xylanase during saccharification with no chemical pretreatment: (beside glucose and xylose) represented 5.00% biomass concentration and (beside glucose and xylose)...
Ngày tải lên: 05/09/2013, 15:28
Tài liệu PHYSICAL AND CHEMICAL ASPECTS OF ORGANIC ELECTRONIC doc
... Functionalisation 575 Motivation and Strategies 575 Chemically Modified Devices 576 Electrochemical Functionalisation 577 Selective Electrochemical Functionalisation 579 Chemical Doping 583 Sensors ... Nanoparticles 134 Electroless Deposition of Gold 134 Chemical Vapour Deposition of Gold 134 AFM Measurements 135 Acknowledgements 135 References 135 Growth Morphologies and Charge Carrier Mobilities ... as a Function of VD and VG 152 Discussion and Conclusions 157 Correlation of the Electrical Transport Properties and the Film Morphology 157 Origin of the Structural Defects and Conclusions 158...
Ngày tải lên: 16/02/2014, 19:20
Tài liệu Báo cáo khoa học: Endotoxic activity and chemical structure of lipopolysaccharides from Chlamydia trachomatis serotypes E and L2 and Chlamydophila psittaci 6BC pdf
... Kdo, and tetrasaccharide 1-monophosphate (TS 1-MP) One-dimensional 1H- and 31P-, and two-dimensional homo- (1H,1H-DQF-COSY) and heteronuclear (1H,13C-,1H,31P-HMQC) NMR spectroscopy (Figs and 6) and ... I Goroncy, H Luthje and V ¨ Susott for technical assistance and S Kusumoto (Osaka/Japan) for lipid A (compound 506) and L Hawkins (North Andover, MA USA) for compound B1233 and for reading the ... C18:0, C20:0 and 3-OH-C20:0 MALDI-MS and ESI-MS analysis As a first step in the structural analysis, LPS and de-Oacylated LPS of C trachomatis serotype E was analyzed by MALDI-TOF and ESI-FT-ICR...
Ngày tải lên: 20/02/2014, 23:20
Tài liệu Báo cáo Y học: Electrochemical, FT-IR and UV/VIS spectroscopic properties of the caa3 oxidase from T. thermophilus docx
... oxidized and the negative signals with the reduced form of the enzyme For the reduced form, the Soret band can be observed at 415 and 442 nm, and for the oxidized form at 403 and 422 nm The b–band ... 517 and 547 nm are characteristic for heme c In electrochemically induced difference spectra of horse heart cytochrome c the Soret band was reported to absorb at 418 nm, the b-band at 520 nm and ... can be seen at 517 nm and the a–band at 547 nm and 603 nm The difference signals that can be observed between 400 and 700 nm include the contributions of the hemes c, a and a3 The difference...
Ngày tải lên: 21/02/2014, 15:20
HANDBOOK ON CHEMICAL WEAPONS CONVENTION FOR INDIAN CHEMICAL INDUSTRY AND CHEMICAL TRADERS ppt
... Schedule-1 Chemicals (i.e Chemical Weapons and precursors); (ii) Schedule-2 Chemicals (i.e precursors to Chemical Weapons); and (iii) Schedule-3 Chemicals (i.e dual use chemicals) Annex on Chemicals ... IUPAC chemical name and ITC (HS) code for schedule chemicals (Page 71 of the handbook) 5.5 Identification of Scheduled / Unscheduled Chemicals Compile IUPAC name and CAS No of all chemicals handled ... Handbook on chemicals Chemicals listed by occurrence with their position in the Schedules of Chemicals; scheduled chemicals listed by Chemical Abstracts Service Registry Number and Scheduled Chemical s:...
Ngày tải lên: 14/03/2014, 19:20
Aircraft measurements over Europe of an air pollution plume from Southeast Asia – aerosol and chemical characterization pot
... centered in the water vapor absorption band on 24 March at 13:00 UTC (top) and on 25 March at 11:15 UTC (bottom) The routes of flight A and B are superimposed as grey lines, and the position of ... agricultural lands in Myanmar and Thailand The size of these fires is not known and, thus, the emission strength is highly uncertain However, the Asian pollution plume likely contained a mixture of FFC and ... numbered I–V and highlighted by a turquoise background, stratospheric flight sections are labelled S-I and S-II and highlighted in yellow, and the descent into the boundary layer is labelled BL and highlighted...
Ngày tải lên: 15/03/2014, 20:20
Concentration and chemical speciations of cu, zn, pb and cr of urban soils in nanjing, china
... Pb and Cr concentrations and chemical speciation of urban soils in Nanjing, China Materials and methods 2.1 Description of study area Nanjing city is located in eastern China (31j14V 118j22V and ... Cu and Cr The non-residual fractions of Cu, Zn, Pb and Cr in non-urban soils average 6.7%, 8.7%, 16.5% and 10.1%, respectively Therefore, Cu, Zn and Pb in urban soils have higher mobility and ... 24 h, weighed and ground to pass a nylon sieve with 0.15-mm openings A 0.2-g subsample was used for determining Cu, Zn, Pb and Cr contents Total Cu, Zn, Pb and Cr contents in soils and residual...
Ngày tải lên: 15/03/2014, 23:22
Báo cáo khoa học: Soluble recombinant CD69 receptors optimized to have an exceptional physical and chemical stability display prolonged circulation and remain intact in the blood of mice doc
... (lanes and 3), CD69NG70 (lanes and 5), CD69NV82 (lanes and 7) CD69NS84 (lanes and 9), rat CD69 (lanes 10 and 11) and mouse CD69 (lanes 12 and 13) was performed under nonreducing (even lanes) and ... solubility and stability among these proteins and allow us to select the human protein containing amino acids Gly70 to Lys199 (and the rat and mouse orthologs) as the most physically and biochemically ... soluble CD69 ligands, or by soluble CD69 receptors might protect CD69+ killer cells from apoptosis, and render them more available for killing of the tumors Structural and biochemical studies...
Ngày tải lên: 16/03/2014, 04:20
Integrated Systems of Meso-Meteorological and Chemical Transport Models docx
... Meso-Meteorological and Chemical Transport Models Alexander Baklanov Alexander Mahura Ranjeet S Sokhi l l Integrated Systems of Meso-Meteorological and Chemical Transport Models Editors Prof Alexander Baklanov ... chemistry and simple aerosol/cloud chemistry and microphysics and often neglects the feedbacks between prognostic chemical species (e.g., O3 and aerosols) and radiation (e.g., Roelofs and Lelieveld ... 215 Alexander Baklanov, Sander Tijm, and Laura Rontu 22 Summary and Recommendations on Integrated Modelling 229 Alexander Baklanov, Georg Grell, Barbara Fay, Sandro Finardi, Valentin...
Ngày tải lên: 16/03/2014, 23:20
Báo cáo khoa học: High thermal and chemical stability of Thermus thermophilus seven-iron ferredoxin Linear clusters form at high pH on polypeptide unfolding doc
... [2Fe)2S] High pH and [GdnHCl] High pH and [GdnHCl] High pH and [GdnHCl] High pH or [urea] Exposure to oxygen High [GdnHCl] Physiological High pH and [GdnHCl] High pH and [GdnHCl] High pH and [GdnHCl] ... absorption occurred Discussion Understanding and probing protein stability at high temperatures and extreme conditions is relevant for a variety of biochemical and biotechnological applications Intriguingly, ... cluster and tryptophan separation and presumably cluster decomposition (Fig 2B) Folded FdTt has positive CD absorption 230 nm, arising from the tryptophan and tyrosine contribution, and a negative...
Ngày tải lên: 16/03/2014, 23:20
agenda for advancing electrochemical corrosion science and technology pdf
Ngày tải lên: 17/03/2014, 16:20
Organic Molecules and Chemical Bonding pdf
... include alkanes (C and H), haloalkanes (C, H, and X), alcohols and ethers (C, H, and O), and amines (C, H, and N) [graphic 1.5] (4,5,9,11,12/98)(1,9,10/99) Neuman Chapter Alkanes (C-C and C-H Bonds) ... detailed description of their chemical bonds The Basis for the Number of Bonds and Unshared Electrons on C, N, O, and F The number of bonds and unshared electrons on C, N, O, and F in their compounds ... of chemical bonds between atoms familiar to you and routinely used by organic chemists In order to explain properties of organic molecules and their chemical reactions, we will treat most chemical...
Ngày tải lên: 22/03/2014, 14:20
Functional Groups and Chemical Families pptx
... carbon members of the oxahydrocarbon families (alkanes to carbon dioxide) Hydrogen and oxygen are redox standards at +1 and –2, respectively Thus, the carbon oxidation state in methane is –4, in methanol ... relationship of functional group types can be one the most powerful tools for understanding and simplifying organic chemical reactivity ... knowledge of reactivity, and at the same time it prepares us to think of yet unseen transformations on the basis of how those transformations might be effected This abstraction of chemical structure...
Ngày tải lên: 22/03/2014, 14:20
Báo cáo khoa học: Structure–cytotoxicity relationships in bovine seminal ribonuclease: new insights from heat and chemical denaturation studies on variants ppt
... (15 and 16) and to regions 45–49 and 101–103, which ˚ are less than A from the Arg80 side chain The overlay of the 1H-15N-HSQC spectrum of mBS with those of its G16S ⁄ N17T ⁄ P19A ⁄ S20A mBS and ... for BS-RNase and 59.0 °C for hA-BS-RNase, i.e very close to each other In turn, significantly lower, and comparable, Tm values of 54.3 °C and 53.6 °C were found for S80-hA-BS-RNase and S80-BS-RNase, ... fluorescence intensity at a given temperature, and Imax and Imin are the maximum and minimum values of fluorescence intensity corresponding to the denaturated state and native state of proteins, respectively...
Ngày tải lên: 22/03/2014, 17:20
A Single-Molecule Perspective on the Role of Solvent Hydrogen Bonds in Protein Folding and Chemical Reactions pptx
... separating b-strands In Figure B, we define the pulling coordinate for the A’ and G b-strands as the distance between the first amino acid of strand A’ (Y9) and the last amino acid of strand G (K87) ... continued examination and the development and refinement of theoretical models further progress could be made in understanding the molecular mechanism in protein folding and chemical reactions Experimental ... originates from a localized patch of hydrogen bonds between the A’ and G b-strands of the protein (Figure A).[54, 56] The A’ and G strands must slide past one another for unfolding to occur Since...
Ngày tải lên: 22/03/2014, 18:20
The Water Framework Directive Ecological and Chemical Status Monitoring ppt
... bodies, and protect and enhance the status of aquatic ecosystems and associated wetlands It aims to promote sustainable water consumption and will contribute to mitigating the effects of oods and ... Algae, Protozoa and Helminths in Fresh and Drinking Water Edited by Andre Van der Beken, Giuliano Ziglio and Franca Palumbo Analytical Methods for Drinking Water: Advances in Sampling and Analysis ... Applications and Perspectives Edited by Giuliano Ziglio, Maurizio Siligardi and Giovanna Flaim Wastewater Quality Monitoring and Treatment Edited by Philippe Quevauviller, Olivier Thomas and Andre Van...
Ngày tải lên: 23/03/2014, 01:20
Báo cáo khoa học: The phosphate site of trehalose phosphorylase from Schizophyllum communeprobed by site-directed mutagenesis and chemical rescue studies pptx
... trehalose phosphorylase [16] and report on results of steadystate kinetic analysis and chemical rescue studies for site-directed ScTPase mutants Arg507 Ala (R507A) and Lys512 Ala (K512A) A detailed ... characterization of R507A and K512A, and kinetic parameters of wild-type and mutant phosphorylases for phosphorolysis of a,a-trehalose are summarized in Table Both R507A and K512A exhibited a dramatic ... mutants and suggest that external guanidine and propargylamine can partly compensate for the loss of the original side chain in R507A and K512A, respectively A series of primary amines and derivatives...
Ngày tải lên: 30/03/2014, 04:20